A 31-year-old woman comes to the physician because of a two-day history of epistaxis and fatigue. Serum creatinine is 3.8 mg/dL. Antibody screening yields positive titers against anti-proteinase 3. A renal biopsy is shown.
Which of the following combinations of findings is most likely to be seen in this patient?
c-ANCA; ↑ Bleeding time; ↓ Platelet count
c-ANCA; ↑ Bleeding time; ↔ Platelet count
c-ANCA; ↔ Bleeding time; ↓ Platelet count
c-ANCA; ↔ Bleeding time; ↓ Platelet count
p-ANCA; ↑ Bleeding time; ↓ Platelet count
p-ANCA; ↑ Bleeding time; ↔ Platelet count
p-ANCA; ↔ Bleeding time; ↓ Platelet count
p-ANCA; ↔ Bleeding time; ↓ Platelet count
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Cut-to-the-chase Answer (0:46):
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HY USMLE Answer (5:52):